TW201032489A - Methods and systems to prolong mobile station operation during low battery power - Google Patents

Abstract

Certain embodiments of the present disclosure allow a mobile station to activate a sleep mode in order to reduce power consumption when the residual battery capacity is low. Certain embodiments of the present disclosure also provide techniques for adaptive power saving applied during an idle mode operation.

Description

201032489 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates generally to communications, and more particularly to a method for reducing power consumption at a mobile station (MS) when the remaining battery capacity is low. [Prior Art] There seems to be a defect in the prior art. SUMMARY OF THE INVENTION Certain embodiments of the present invention provide a method for extending the working time of a mobile station (MS). The method generally includes measuring the remaining battery capacity of the MS when the milk has one or more active transmission connections; determining the most restrictive maximum latency requirement for the active transmission connections; and if the remaining battery capacity is below a predefined The threshold then initiates a sleep mode operation at the MS, where the length S of the sleep window is selected such that S allows the most constrained maximum latency requirements for these active transport connections to be met. Certain embodiments of the present invention provide a method for extending the working time of a mobile station (Ms). The method generally includes measuring the remaining battery capacity of the Ms and entering the inter-mode, wherein the length of the paging period of the idle mode is determined based on the remaining battery capacity. Certain embodiments of the present invention provide an apparatus for extending the working time of a mobile station (MS). The apparatus generally includes: logic for measuring the remaining battery capacity of the MS when the MS has one or more 201032489 active transmission connections, for determining the most restrictive maximum latency requirement for these active transmission connections.

Logic 'and logic for initiating sleep mode operation at the MS if the remaining battery capacity is below a predefined threshold, wherein the length s of the sleep window is selected such that S allows the MS to satisfy the most restrictive of these active transport connections Maximum waiting time requirement. Certain embodiments of the present invention provide means for extending the time of the mobile station (MS). The apparatus typically includes logic for measuring the remaining battery capacity of (10) and logic for entering the inter-person mode, wherein the length of the paging period of the idle mode is determined based on the remaining battery capacity. Certain embodiments of the present invention provide an apparatus for extending the working time of a mobile station (MS). The apparatus generally includes means for measuring the remaining battery capacity of the Ms when the Ms has one or more active transport connections; the most restrictive maximum latency requirement for determining the active transport connections.

a component; and a means for initiating a sleep operation at the MS if the remaining battery capacity is below a predefined threshold, the money 8 of the towel sleep window is selected to 'make the S allow the MS to satisfy the most Constrained maximum latency requirements. Certain embodiments of the present invention provide an apparatus for extending the working time of a mobile station (ms). The apparatus generally includes means for measuring the remaining battery capacity of the Ms, wherein the length of the paging period of the (four) mode is determined based on the remaining battery capacity. Some embodiments of the present invention provide a computer program product for extending the working time of a mobile station (ms), including an electric cat on which a command is stored, which can be read by one or more processors. Execution. These instructions generally include instructions for measuring ms ^ remaining battery capacity when the MS has one or more active transport connections, and instructions for determining the most restrictive maximum latency requirements for these active transport connections; And instructions for initiating a sleep mode operation at the MS if the remaining battery capacity is below a predefined threshold, wherein the length s of the sleep window is selected such that s allows Ms to satisfy the most restrictive of the active transport connections Maximum waiting time requirement. Certain embodiments of the present disclosure provide a computer program product for extending the operating time of a mobile station (MS)' including computer readable media having stored thereon instructions that are executable by one or more processors. These instructions generally include an instruction for measuring the remaining battery capacity of the MS and an instruction for entering the idle mode, wherein the length of the paging period of the idle mode is determined based on the remaining battery capacity. [Embodiment] The wording "exemplary" is herein. Used to mean "used as an example, instance, or comment." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous. The Worldwide Interoperability for Microwave Access (WiMAX) standard has defined a sleep mode in which a mobile station (Ms) having multiple transport connections can negotiate with a serving base station (BS) to sleep and wake up in a regular time interval. The MS can enter sleep mode after releasing all transmission connections to periodically power it off. 0 5 201032489

The WiMAX standard specifies three power saving class (PSC) types: PSC Type 1, which allows the MS to enter sleep mode with an exponentially increasing sleep duration until the maximum sleep duration is reached; PSC Type 2, which allows the MS to persist with constant sleep The period enters the sleep mode; and the PSC type 3, which has only a single sleep duration, the MS exits the sleep mode after this sleep duration. However, the WiMAX standard does not specify how to trigger sleep mode. This case addresses this specific issue. • The battery capacity of the MS may only allow for limited operating time. After the battery is exhausted, the MS may need to power it down and lose connectivity and service with the WiMAX network. Therefore, there is a need in the art for ways to reduce the power consumption of the MS and extend its operation. Exemplary wireless communication system

The techniques described herein can be used in a variety of broadband wireless communication systems, including communication systems based on orthogonal multiplexing schemes. Example packages of such communication systems include an Orthogonal Frequency Division Multiple Access (OFDMA) system, a Single Carrier Frequency Division Multiple Access (SC-FDMA) system, and the like. The OFDMA system utilizes orthogonal frequency division multiplexing (OFDM), a modulation technique that divides the overall system bandwidth into multiple orthogonal subcarriers. These secondary carriers may also be referred to as tones, bins, and the like. With OFDM, each subcarrier can be independently modulated with data. The SC-FDMA system can transmit on subcarriers distributed across system bandwidth using interleaved FDMA (IFDMA), on localized FDMA (LFDMA) on blocks consisting of adjacent subcarriers, or by using enhanced FDMA (EFDMA) Transmitted on multiple blocks consisting of etb adjacent carriers. In general, modulation symbols are transmitted in the frequency domain under OFDM 201032489 and in the time domain under SC-FDMA. A specific example of a communication system based on an orthogonal multiplexing scheme is a WiMAX system. WiMAX, which represents global interoperability for microwave access, is a standards-based, broadband wireless technology that provides high-throughput broadband connections over long distances. There are two main WiMAX applications today: fixed WiMAX and mobile WiMAX. Fixed WiMAX applications are point-to-multipoint, enabling broadband access, for example, for homes and businesses. Mobile WiMAX provides full mobility of the cellular network φ at broadband speeds. IEEE 802.16x is an emerging standards organization that defines empty intermediaries for fixed and mobile broadband wireless access (BWA) systems. These standards define at least four different physical layers (PHYs) and one media access control (MAC) layer. The OFDM and OFDMA physical layers in these four physical layers are the most popular in the fixed and mobile BWA fields, respectively. FIG. 1 illustrates an example of a wireless communication system 100 in which an embodiment of the present invention can be employed. The wireless communication system 100 can be a broadband wireless communication system. Φ Wireless communication system 100 can provide communication for a plurality of cell service areas 102, each of which can be served by base station 104. Base station 104 can be a fixed station that communicates with user terminal 106. Base station 104 may alternatively be referred to as an access point, Node B, or some other terminology. FIG. 1 illustrates various user terminals 106 throughout system 100. User terminal 106 can be fixed (i.e., stationary) or mobile. The user terminal 1-6 can alternatively be referred to as a remote station, an access terminal, a terminal, a subscriber unit, a mobile station, a station, a user equipment, and the like. User terminal 106 may be a wireless device such as a cellular telephone, a personal digital assistant (PDA), a palm-sized device, a wireless data modem, a laptop computer, a personal computer, and the like. Various algorithms and methods can be used for transmissions between the base station 104 and the user terminal 106 in the wireless communication system 100. For example, signals can be transmitted and received between base station 104 and user terminals 〇6 in accordance with OFDM/OFDMA techniques. If this is the case, the wireless communication system 1 can be referred to as an OFDM/OFDMA system. The communication link facilitating transmissions from the base station 104 to the user terminal 106 may be referred to as a downlink (DL) 108, while the communication link facilitating transmissions from the user terminal 丨〇6 to the base station 104 may be referred to as For the uplink (UL) 110. Alternatively, downlink 108 may be referred to as a forward link or a forward channel, and uplink 110 may be referred to as a reverse link or a reverse channel. The cell service area 102 can be divided into a plurality of sectors 112 » sectors 丨丨 2 which are real Zhao coverage areas within the cell service area 102. The base station 104 within the wireless communication system 1 can utilize an antenna that concentrates power flow within a particular sector 112 of the cell service area ι2. Such an antenna may be referred to as a directional antenna. Figure 2 illustrates the various components that can be used in the wireless device 2〇2 within the wireless communication system. Wireless device 202 is an example of a device that can be configured to implement the various methods described herein. The wireless device 202 can be the base station 104 or the user terminal 106. Wireless device 202 can include a processor 204 that controls the operation of wireless device 2.1. Processor 204 may also be referred to as a central processing unit (CPU). Memory 206, which may include both read only memory (ROM) and random access memory (RAM), provides instructions and data to processor 204. The _ portion of the memory 2〇6 may also include non-volatile random access memory (NVRAM). Processor 2〇4 201032489 typically performs logical and arithmetic operations based on program instructions stored in memory 206. Instructions in memory 206 are executable to implement the methods described herein. The wireless device 202 can also include a housing 208 that can include a transmitter 210 and a receiver 212 to allow transmission and reception of data between the wireless device 202 and a remote location. Transmitter 210 and receiver 212 can be combined into transceiver 214. Antenna 216 can be attached to housing 208 and electrically coupled to transceiver 214. Wireless device 202 may also include (not shown) multiple transmitters, multiple φ receivers, multiple transceivers, and/or multiple antennas. The wireless device 202 can also include a message detector 218 that can be used to attempt to detect and quantize the level of signals received by the transceiver 214. Signal detector 218 can detect signals such as total energy, energy per symbol per symbol, power spectral density, and the like, as well as other signals. Wireless device 202 can also include a digital signal processor (DSP) 220 for processing signals. The various components of the wireless device 202 can be lightly coupled together by the busbar system 222, except for the data busbars. The busbar system 222 can also include a power sink® flow bank, a control signal bus, and a status signal bus. An example of a transmitter 302 that can be used within a wireless communication system 1 using 01?1) 14/0171)^ is illustrated. Portions of transmitter 302 may be implemented in transmitter 210 of wireless device 202. Transmitter 302 may be implemented in base A 104 to transmit data to user terminal 1 〇 6 on downlink 1 〇 8. Transmitter 302 can also be implemented in user terminal 106 to transmit data 306 to base station 104 on an uplink HQ. The material to be transmitted 306 is shown as being provided as an input to a series-parallel (s/p) converter 308. The S/P converter 308 can split the transmission data into μ 9 201032489. The parallel data stream 310 β 并行 a parallel data stream 31 〇 can then be provided as an input to the mapper 3 ΐ 2 . Mapping ϋ 312 can map these parallel data_streams 31〇 to 群集 cluster points. The mapping can use, for example, binary shift phase keying (Β?), quadrature phase shift keying (QPSK), 8 phase shifting keys. A modulation cluster such as control (8PSK) or quadrature amplitude modulation (QAM) is performed. Thus, mapper 312 can output m parallel symbol streams 316, each symbol stream 316 corresponding to one of the orthogonal orthogonal subcarriers of the inverse fast Fourier transform (ifft) 320. The M parallel symbol streams 316 can be represented in the frequency domain and can be transformed into μ parallel time domain sample streams 3丨8 by the IFFT component 32〇. A short note on the term will now be provided. Two parallel modulations in the frequency domain are equivalent to one modulation symbol in the frequency domain, equivalent to μ mappings in the frequency domain and IFFT, equivalent to one (useful) 〇FDM symbol in the time domain, Equivalent to one sample in the time domain. A 〇fdm symbol NS in the time domain is equivalent to NCP (the number of fdm symbol protection samples per )) + μ (the number of useful samples per 〇fdm symbol _). The parallel parallel time domain sample stream 318 can be converted to an OFDM/OFdmA symbol stream 322 by a parallel series (p/s) converter 324. The guard insertion component 320 can insert a guard interval between successive OFDM/OFDMA symbols in the 〇Fdm/OFDMA symbol stream 322. The output of the protection insertion component 326 can then be upconverted to the desired transmit frequency band by a radio frequency (RF) front end 328. Antenna 330 can then transmit the resulting signal 332. FIG. 3 also illustrates an example of a receiver 304 that may be used within a wireless device 202 that utilizes OFDM/OFDMA. Portions of receiver 304 may be implemented in receiver 212 of wireless 201032489 device 202. Receiver 304 can be implemented in user terminal 106 to receive data 306 from base station 1〇4 on downlink 108. Receiver 304 can also be implemented in base station 1〇4 to receive data 306 from user terminal 106 on uplink no. The transmitted signal 332 is shown as propagating over the wireless channel 334. When signal 332 is received by antenna 330, signal 332 is received and can be downconverted to baseband signal by RF front end 328'. The guard removing element 326 is then removed from the protected area between the OFDM/OFDMA symbols inserted by the φ guard inserted element 326. The output of the protection removal element 326' can be provided to the s/p converter 3241. An S/P converter 324 can divide the OFDM/OFDMA symbol stream 322 into M parallel time-domain symbol streams 318, each of which corresponds to one of the symmetric orthogonal sub-carriers. A fast Fourier transform (FFT) component 32 〇 can transform the parallel time domain symbol streams 318 into the frequency domain and output m parallel frequency domain symbol streams 316·. The demapper 312 can perform the inverse operation of the symbol mapping operation that was performed by the mapper 312, thereby outputting M parallel data streams 3 i 〇. The p/s converter 308' combines the parallel data streams 31 into a single data stream 3〇6. Ideally, this data stream 306 corresponds to data 306 provided as an input to the transmitter 3〇2. Note that elements 3〇8, 31〇, 312, 316, , 318' and 324' can be found in the baseband processor 34A. Exemplary Techniques for Extending Operation Time of a Mobile Station Certain embodiments of the present invention provide a method for initiating a sleep mode at a mobile station to reduce its power consumption when the remaining battery capacity is below a predefined 201032489 threshold. Certain embodiments of the present invention also provide an adaptive power saving method for idle mode operation that extends the operating time of a mobile station when battery power is low. Exemplary Techniques for Extending the Operation Time of a Mobile Station During Low Battery Power FIG. 4 illustrates an example operation for extending the operation of a mobile station (MS) during periods of low battery power. The remaining battery capacity can be measured at 41 〇 ' with one or more transmission connections. The concept of remaining battery capacity is well known in the art. For example, a typical laptop provides this particular measurement function. The remaining battery capacity R can be measured as the remaining capacity divided by the percentage of the full charge capacity. When the remaining battery capacity falls below a predefined threshold, ie, R<T is low (decision step 412), the MS may exchange mob_slp-req (action side sleep_request) message and M at 414 by exchanging with the base station (BS). 〇B sLp Rsp (Action-Sleep-Response) message to initiate sleep mode operation by initiating sleep mode and reducing power consumption. For some embodiments of the present case, Psc type 2 can be supported. At 416, the MS can initiate a power save level (psc) type 2 with a constant sleep duration to maintain service and connectivity with the BS while reducing battery drain speed. The MS maps all connections to a single psc level identification (ID). The sleep mode has two key parameters: the sleep window length s and the listening window length L, as shown in Figure 5. At 418, the sleep window length can be constrained such that S can satisfy the most constrained maximum latency quality of service (QoS) requirements for all transport connections. For example, if there are two transport connections, one of the 12 201032489 maximum wait time is tl, and the other one is the most

Find time t2 > tl, then S should be less than min{tl,t2} to meet the s requirement at the same time. At 420', the δ of the sleep window and the length L· of the listening window can be constrained so that the power saving target expressed by the following ratio can be satisfied: (1)

L

Y+L If the goal of battery power savings is more aggressive then the factor a can be chosen to have a smaller value. Otherwise, the factor α can be chosen to have a larger value if the target of battery power is more conservative. At 422, the MS can select a value for the sleep window length s and the listening window length [based on the conditions defined in steps 418 and 420. After the BS is allowed to enter the sleep mode, at 424, the MS can wake up in the listening window to send and receive data to/from the BS. At 426, in the sleep window, the MS can power down the hardware to conserve battery power. At 428, ms can continue to measure its remaining battery capacity R ^ When the battery is recharged to some extent, the MS can exit sleep mode. Specifically, when the remaining battery capacity rises above another predefined threshold T*, ie, R > τ* (step 430), the MS may exchange the appropriate m〇B_SLP-REQ and MOB-SLP- at 432 by exchanging with the BS. The RSP message goes to initiate sleep mode. For some embodiments of the present case, the thresholds T and T* may be selected depending on the amount of data traffic communicated between the MS and the serving BS. If the traffic conveyed is low, then the threshold required to trigger sleep mode can be lower, and vice versa if the data traffic is higher. For some embodiments of the present case, the threshold T is low 13 201032489 and T* can be selected based on the priority order of the running application at the MS. If the application's priority is higher, the threshold for remaining battery capacity required to enter and exit sleep mode can be set lower. On the other hand, low priority applications can be terminated more quickly when there is a higher level of remaining battery capacity. For some embodiments, once the remaining battery capacity drops below a predefined threshold, the MS can be allowed to enter sleep mode while retaining the transmission connection. Ms 10 = This special feature prevents the fast disconnection of the connection and extends the service when the remaining battery is low. If the battery is recharged, for example, such that the remaining battery capacity is above a further predefined threshold, then Ms can be allowed to return to normal operation. Unusual adaptive power saving in idle mode operation

The inter-mode operation mode of the MS may include a listening interval and an unavailable (sleeping) interval. Figure 6 illustrates the concept of a paging listening interval and an unavailable (sleeping) interval. Starting from the frame number N that satisfies the following conditions, the MS can start listening to the mobile terminal during the recurring paging debt listening interval—paging _ advertising color (m〇b_pag adv message): (2)

Wm〇d paging _ cycle = paging _ offset On the other hand, the MS can enter the sleep mode during the reproduction of the unavailability interval to save battery power. The parameter paging period can be set by the MS and transmitted as a part of the M0B-DREG-REQ message 14 201032489 (mobile terminal - revocation - request message) to the base station (BS). The parameter paging-offset can be set by the BS and communicated to the MS in the MOB-DREG-CMD message (Action-Undo-Command message). The battery capacity of the MS may only allow for limited operating time. After the battery has been consumed to a certain point, the MS may need to turn it off and cut off

WiMAX wireless network services. An adaptive power saving method is proposed in this case to further extend the ❿ working time of the MS in the inter-operating mode during low battery power. Figure 7 illustrates a procedure for an adaptive power saving method that can be applied to idle mode operation at the MS. At 710, the MS can begin its standard paging period equal to the standard inter-mode of T, 丨, duration, which represents a conservative approach, since τ丨 can be a short duration. At 712, the MS can wake up during the paging listening interval. Following this, at 714, the MS can check the remaining battery capacity. The remaining battery capacity R can be measured as a percentage of the remaining capacity divided by the full charge capacity. When the remaining battery capacity falls below a predefined threshold U, i.e., R < u (decision step 716), Ms may initiate active power saving operations. At 718, the MS may send a MOB-DREG-REQ message with a parameter paging period equal to a duration T (τ large > T small) to the BS, and may wait to receive the MOB-DREG-CMD message from the BS. Therefore, the new value of the inter-mode mode parameter paging_cycle allows the MS to sleep longer and save more battery power when the remaining battery power is lower. After the BS grants the new idle mode parameter, at 72 〇, Ms can wake up in the less frequent paging listening interval to send and receive data with the BS. The hardware 15 201032489 can be powered down during the paging unavailable period (ie, during sleep mode) to conserve battery power. If the battery is recharged and the battery capacity returns to a certain level, then :s can return to the standard idle mode operation...22, (10) to check the percentage of the remaining battery capacity R. Specifically, when the remaining battery capacity scale rises above another predefined threshold V, ie, r > v (usually vau) (decision step 724) 'MS may send its parameter paging to the BS - cycle = coincidence, paging - Cycle = Heart's DREG-REQ message' and wait to receive the M〇B-dregcmd message from ]8;5 before entering the intervening mode with the parameterized paging-period conservative threshold. In order to be able to send a MOB-DREG-REQ message to update the value of the parameter paging_cycle, for some embodiments of the present case, the MS may need to perform an initial ranging request or network re-entry to receive the basic connection identifier (basic CID) and Primary Management CID » For some embodiments of the present case, Ms may need to send a bandwidth ranging message to request an Uplink (UL) data grant before transmitting a Media Access Control (MAC) management message. According to the adaptability method presented herein, the MS can more actively conserve battery power when the remaining battery capacity is low. As presented herein, ms can adapt the control parameters of idle mode operation, such as the length of the paging period, to the remaining battery capacity. The various operations of the above described methods can be performed by various hardware and/or software components and/or modules corresponding to the functional blocks of the figures illustrated in the drawings. For example, block 41 〇 432 illustrated in Figure 4 corresponds to means functional blocks 410A-432A illustrated in Figure 4A. Similarly, blocks 710-724 illustrated in Figure 7 correspond to means functional blocks 710A-724A illustrated in Figure 7A. Further 16 201032489 In general, the method illustrated in the figures has the corresponding pairing means function diagrams. The operational blocks correspond to means functional blocks having similar numbers. Each of the illustrative logic blocks, modules, and circuits described in connection with the present disclosure may be a general purpose processor, a digital signal processor (DSP), an application integrated circuit (ASIC), a field programmable gate array signal (FPga), or other programmable A logic device (PLD), individual gate or transistor logic, individual hardware components, or any combination thereof designed to perform the functions described herein is implemented or executed. A general purpose processor may be a microprocessor, but in the alternative the processor may be any commercially available processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, e.g., a combination of a Dsp and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration. The steps of the method or algorithm described in the present case can be directly in the hardware,

The methods disclosed herein are included for implementing the software modules described in execution by process H, or a combination of the two. The software module can be resident in the sun....... One or more of the methods described 17 201032489 Steps or actions. These method steps and/or actions may be interchanged without departing from the scope of the whistle. In other words, the order and/or use of the specific steps and/or actions can be modified without departing from the scope of the claims. The functions described can be implemented in hardware, software, toughness or any combination thereof. If implemented in software, each function can be stored as one or more instructions on a computer readable medium. The storage medium can be any available media that can be accessed by the computer. By way of example and not limitation, such computer-readable media may include RAM, ROM, EEPR〇M, CD_R〇M or other optical disk storage, disk storage or other disk storage device, or may be used to carry or Any other medium that stores the required code in the form of an instruction or data structure and that can be accessed by a computer. Disks and discs as used herein include compact discs (CDs), laser discs, compact discs, digital versatile discs (dvds), floppy discs, and Blu-ray discs. The data is reproduced, and the optical disc uses laser to optically reproduce the data.

Software or instructions can also be transferred on the transmission medium. For example, if the software is used by a coaxial oscilloscope, fiber optic gauge, twisted pair, digital subscriber line (dsl), or wireless technologies such as infrared, radio, and microwave, from a web site, a feeder, or other remote source. For transmission, the coaxial cable fiber optic cable, twisted pair cable, DSL, or wireless technologies such as infrared, wireless Thunder 1 and microwave are included within the definition of the transmission medium. In addition, it should be appreciated that the modules and/or other suitable means for the methods and techniques described herein can be used to download and/or download the user terminal and/or base station. / or otherwise obtained. You may, for example, pay for such devices as may be coupled to the 18 201032489 server to facilitate the transfer of the means for performing the methods described herein. Alternatively, the various methods described herein may be provided via a storage shelf (eg, RAM, ROM, physical storage media such as a compact disc (CD) or floppy disk, etc.) such that once the storage device is coupled The device can be obtained or provided to the user terminal and/or the base station, and the device can obtain various methods. In addition, any other technique suitable for providing the devices with the methods and techniques described herein can be utilized. Φ It should be understood that the request item is not limited to the precise configuration and components shown above. Various modifications, changes and variations can be made in the arrangement, operation and details of the methods and apparatus described above without departing from the scope of the claims. BRIEF DESCRIPTION OF THE DRAWINGS In order to be able to understand in detail the manner in which the features set forth in the present disclosure are used, the above brief summary will be more specifically described with reference to the embodiments, wherein φ some embodiments are illustrated in the accompanying drawings. It should be noted, however, that the drawings illustrate only certain exemplary embodiments of the present invention and should not be construed as limiting FIG. 1 illustrates an example wireless communication system in accordance with certain embodiments of the present disclosure.圏 2 illustrates various 7G pieces that can be used in a wireless device in accordance with certain embodiments of the present disclosure. 3 illustrates an example transmitter and an example receiver that may be used within a wireless communication system in accordance with certain embodiments of the present disclosure. 4 illustrates a procedure for operating time of a long mobile station during a low battery power period 19 201032489 according to certain embodiments of the present disclosure. FIG. 4A illustrates an example of a method capable of performing the operations illustrated in FIG. 4 The power of the slaves of certain embodiments of the present invention _ concept. Level 1 Type 2 Figure 6 illustrates the concept of a paging listening interval and an unavailable (sleeping) interval in accordance with certain embodiments of the present disclosure. Figure 7 illustrates a procedure for adaptive power savings for intervening mode operations at a mobile station in accordance with certain embodiments of the present disclosure. FIG. 7A illustrates example elements capable of performing the operations illustrated in FIG. 7. [Main component symbol description] 100 Wireless communication system 102 Cell service area 104 Base station 106 User terminal 108 Downlink 110 Uplink 112 Sector 202 Wireless device 204 Processor 205 Clock 206 Memory 208 Shell 20 201032489

210 Transmitter 212 Receiver 214 Transceiver 216 Antenna 218 Signal Detector 222 Busbar System 302 Transmitter 304 Receiver 306 Data 3065 Data Stream 308 S/P 3085 S/P 310 Data Stream 31 (Γ Data Stream 312 Mapper 3125 Demapper 316 Symbol Stream 3165 Symbol Stream 318 Sample Stream 3185 Symbol Stream 320 IFFT 3205 FFT 324 P/S 3241 S/P 201032489 326 Protection Insert 326, Protection Removal 328 RF 328' RF 334 Wireless Channel 322, 3225 symbol stream 330, 33 (Γ Antenna φ 332, 332' Signal 410~432 Flow Steps 410Α~432Α Function Block 710-724 Step Flow 710A-724A Function Block

Claims (1)

201032489 VII. Patent Application Range: 1. A method for extending the working time of a mobile station (MS), comprising the steps of: measuring a remaining battery capacity of the MS when the MS has one or more active transmission connections Determining a most restrictive maximum latency requirement for the one or more active transport connections; and • initiating a sleep mode operation at the MS if the remaining battery capacity is below a predefined threshold, wherein the sleep mode A length S of a dormant window is selected such that s allows the MS to meet the most constrained maximum latency requirement of the one or more active transport connections. The method of claim 1, wherein the remaining battery capacity is measured as a percentage of the remaining capacity relative to a full charge capacity. 3. The method of claim 1, wherein the power saving level is a power saving level type 2 having a constant length sleep window. 4. The method of claim 1 wherein s and the length L of a snoop window of the sleep mode are also selected to achieve a power saving metric based on a ratio of one to the sum of 8 plus L. 5. The method of claim 1, wherein the threshold is selectable based on a data traffic communicated between the MS and the service BS. 6. The method of claim 1, wherein the threshold is selected based on a prioritization of a running application. 7. The method of claim 1, further comprising the step of: exiting the sleep mode if the remaining battery capacity is above another predefined threshold. ^8· A method for extending a working time of a mobile station (MS), comprising the steps of: measuring a remaining battery capacity of the MS; and entering an idle mode wherein the idle mode-paging period length is based on The remaining battery capacity is determined. 9. The method of claim 8, comprising the steps of: having the intervening mode of a first paging period length corresponding to the guaranteed power saving; measuring the MS during a paging listening interval of the idle mode The remaining battery capacity; and if the remaining battery capacity is below a predefined inter-value, enters the mode of a second paging cycle length corresponding to a more aggressive power saving. The method of claim 8, further comprising the steps of: measuring the remaining battery capacity of the MS during a paging listening interval of the idle mode; and if the remaining battery capacity is above a predefined threshold The idle mode having the length of the first paging period is entered again. 11. A device for extending a working time of a mobile station (MS), comprising: logic for measuring a remaining battery capacity of the Ms when the MS has one or more active transmission connections; Logic for determining a most constrained maximum latency requirement for the one or more active transport connections; and logic for initiating a sleep mode operation at the ms if the remaining battery capacity is below a predefined threshold Wherein a length S of a sleep mode of the sleep mode is selected such that s allows the most constrained maximum latency requirement for the one or more active transport connections to be met. 12. The device of claim 11 wherein the remaining battery capacity is measured as a percentage of the remaining capacity relative to a full charge capacity. 13. The apparatus of claim 11, wherein the power save level is a power save level type 2 having a constant length sleep window. 14. The apparatus of claim 11, wherein S and the length L of the sleep mode of the sleep mode are also selected to achieve a power saving metric determined based on a ratio between the sum of L and s plus L . 15. The device of claim 11 wherein the threshold is selectable based on a data traffic communicated with the one of the serving BSs. 16. The apparatus of claim 11, wherein the threshold is selectable based on a priority order of a program in operation. 17. The apparatus of claim 11, further comprising: logic for exiting the sleep mode if the remaining battery capacity is above another predefined threshold. 18. Apparatus for extending a working time of a mobile station (MS), comprising: logic for measuring a remaining battery capacity of the MS; and logic for entering an idle mode, wherein one of the idle modes The length of the paging period is determined based on the remaining battery capacity. 19. The apparatus of claim 18, comprising: logic for entering the intervening mode having a first paging period length corresponding to conservative power savings; for use in a paging listening interval of the idle mode Logic for measuring the remaining battery capacity of the MS; and 26 201032489 for entering the intervening mode having a second paging cycle length corresponding to more aggressive power savings if the remaining battery capacity is below a predefined threshold Logic. 20. The apparatus of claim 18, further comprising: logic for measuring the remaining battery capacity of the MS during a paging listening interval of the idle mode; and φ if the remaining battery capacity is above a predefined threshold Logic for re-entering the idle mode having the length of the first paging period. 21. An apparatus for extending a working time of a mobile station (MS), comprising: means for measuring a remaining battery capacity of the MS when the MS has one or more active transmission connections; a most constrained maximum time requirement component of the one or more active transport connections; and means for initiating a sleep mode operation at the MS if the remaining battery capacity is below a predefined threshold And wherein a length S of a sleep window of the sleep mode is selected such that s allows the MS to satisfy the most constrained maximum latency requirement of the one or more active transport connections. 22* The device of claim 21, wherein the remaining battery capacity is measured as a percentage of the remaining capacity relative to a fully charged capacity. The device of claim 21, wherein the power saving level is a power saving level type 2 having a constant length sleep window. 24. The device of claim 21, wherein S and a length L of the sleep mode listening window are also selected to achieve a power saving metric based on a ratio between l and 8 plus L. • 25. The device of claim 21 wherein the threshold is selectable based on a data traffic communicated between the ms and a serving BS. 26. The device of claim 21 wherein the threshold is selected based on a priority order of a running application. 27. The device of claim 21, further comprising: means for retiring the sleep mode if the remaining battery capacity is above another predefined threshold. A working time setting of MS) 28. A means for extending a mobile station, comprising: means for measuring a remaining battery capacity of the MS; and means for entering an inter-mode, wherein the The length of a paging period of the mode is determined based on the remaining battery capacity. 29. The device of claim 28, comprising: 28 201032489 for entering a length of a first paging period corresponding to a conservative power saving a component of the idle mode; means for measuring the remaining battery capacity during a paging listening interval of the idle mode; and for having a more aggressive power if the remaining battery capacity is below a predefined threshold Means for saving the idle mode of the corresponding second paging period length. The device of claim 28, further comprising: for measuring the remaining battery during a paging listening interval of the inter-mode a component of capacity; and if the remaining battery capacity is above a predefined threshold for re-entering the idle with the length of the first paging period 31. A computer® program product for extending a working time of a mobile station (MS), comprising computer readable media having instructions stored thereon, the instructions being executable by one or more processors And the instructions include: instructions for measuring a remaining battery capacity of the MS when the MS has one or more active transport connections; a most restrictive for determining the one or more active transport connections An instruction for a maximum wait time requirement; and an instruction to initiate a sleep mode operation at the MS if the remaining battery capacity is below a predefined threshold, wherein a length S of a sleep window of the sleep mode is selected So that S allows the MS to meet the most constrained maximum latency requirement of the one or more 29 201032489 active transport connections. 32' The computer program product of claim 31, wherein the remaining battery capacity is used as the remaining capacity Measured as a percentage of a fully charged capacity. 33. The computer program product of claim 3, wherein the power saving level is A power saving class 2 having a constant length sleep window. 34. The computer program product of claim 3, wherein s and the sleep mode of the sleep mode are also selected to achieve a A power saving metric determined by a ratio between 8 and 匕. 35. The computer program product of claim 31, wherein the threshold is selectable based on a data traffic communicated between the MS and a service bs 36. The computer program product of claim 31, wherein the threshold is selected based on a priority order of a running application. 37. The computer program product of claim 31, wherein the instructions further comprise: if the remaining An instruction to exit the sleep mode when the battery capacity is above another predefined threshold. 30 201032489 38. A computer program for extending a working time of a mobile station (MS), comprising a computer readable medium on which instructions are stored, the instructions being executable by - or a plurality of processors And the instructions include: an instruction for measuring a __battery capacity of the milk; and an instruction to enter a (five) mode, wherein the interleaving mode-paging period length is determined based on the remaining battery capacity. Φ 39. The computer program product of claim 38, wherein the instructions further comprise: instructions for entering the idle mode having a first paging cycle length corresponding to conservative power savings; for use in the idle mode An instruction to measure the remaining battery capacity of the Ms during a paging listening interval; and for entering a second paging cycle length corresponding to a more aggressive power saving if the remaining battery capacity is below a predefined threshold The instruction of the idle call mode. 40. The computer program product of claim 38, wherein the instructions further comprise: instructions for measuring the remaining battery capacity of the MS during a paging listening interval of the intervening mode; and if the remaining battery capacity is high A predefined threshold is then used to re-enter the instruction of the idle mode having the length of the first paging period. 31